{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the steps involved in upgrading a blockchain?","a":"Requirement Analysis: Based on the existing functions and performance of the blockchain, clarify the goals and needs of  the upgrade, such as increasing transaction speed, enhancing throughput, and optimizing user experience."}]}],"pr":"6fead62f1986087a19b757555b197e0a6e065610a76f68de8632454aa8dfb301"}